To solve this question we have to make deduct these 2 years. 2079 minus 1964 will give the answer.
You are 115 years old.
(1380 months are passed.)
From 1964 to 2079 there are 115 years. If you want to learn your age in 2079 (born in 1964) your age is 115.
Let's see what will be your age if you born +1 or -1 from that date.